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sys/arm64/include/runq.h
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/*- | |||||
* Copyright (c) 2001 Jake Burkholder <jake@FreeBSD.org> | |||||
* All rights reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#ifndef _MACHINE_RUNQ_H_ | |||||
#define _MACHINE_RUNQ_H_ | |||||
#define RQB_LEN (1) /* Number of priority status words. */ | |||||
#define RQB_L2BPW (6) /* Log2(sizeof(rqb_word_t) * NBBY)). */ | |||||
#define RQB_BPW (1<<RQB_L2BPW) /* Bits in an rqb_word_t. */ | |||||
#define RQB_BIT(pri) (1ul << ((pri) & (RQB_BPW - 1))) | |||||
#define RQB_WORD(pri) ((pri) >> RQB_L2BPW) | |||||
#define RQB_FFS(word) (ffsl(word) - 1) | |||||
/* | |||||
* Type of run queue status word. | |||||
*/ | |||||
typedef unsigned long rqb_word_t; | |||||
#endif |